2617421 has 8 divisors (see below), whose sum is σ = 2770080. Its totient is φ = 2466288.

The previous prime is 2617411. The next prime is 2617427. The reversal of 2617421 is 1247162.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2617421 - 2¹⁸ = 2355277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2617427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6395 + ... + 6791.

It is an arithmetic number, because the mean of its divisors is an integer number (346260).

2^2617421 is an apocalyptic number.

It is an amenable number.

2617421 is a deficient number, since it is larger than the sum of its proper divisors (152659).

2617421 is a wasteful number, since it uses less digits than its factorization.

2617421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763.

The product of its digits is 672, while the sum is 23.

The square root of 2617421 is about 1617.8445537195. The cubic root of 2617421 is about 137.8133196596.

The spelling of 2617421 in words is "two million, six hundred seventeen thousand, four hundred twenty-one".